The Ministry of Foreign Affairs of the Netherlands has called the Russian ambassador to the Hague to explain Moscow’s criticism of the MH17 catastrophe investigation, Reuters reports.

Russian foreign ministry spokeswoman Maria Zakharova stated at a briefing on Thursday that Moscow regrets the poor quality and politicization of the investigation of the Malaysia Airlines Boeing crash in Donbass.

Dutch Foreign Minister Bert Koenders stated that Russia’s reaction to the results of the investigation “calls into question the integrity, professionalism, and independence of the investigators.”

“The Russian ambassador has been informed that any unwarranted criticism is unacceptable,” the statement of the Netherlands’ foreign ministry is quoted as saying.

The Kremlin has assessed the Russian ambassador’s summoning as positive. The Russian president’s press secretary, Dmitry Peskov, remarked that “the head of our diplomatic mission in the Netherlands will present all the considerations on the position that we have taken.”

The joint investigative group, which has been working to find those guilty for the Boeing’s, crash unveiled a preliminary report on Wednesday. Investigators believe that the plane was shot down over the territory controlled by Donbass militias. The Russian foreign ministry has expressed disappointment over the situation surrounding the disaster’s investigation and has accused the investigation of being biased, whose findings were based only on the data provided by Ukraine.

The Investigation on the Crash of Malaysian Airlines Boeing 777-200 flight MH17

The international investigation group believes that a missile was launched from Pervomaysk in Donbass from a "Buk" missile complex brought from Russia. The Russian arms corporation Almaz-Antey believes that a rocket was fired from Zaroshchensky and that the investigative group has no technical grounds to prove that Russia was involved.

On July 17th, 2014, a Malaysian Airlines Boeing 777-200 took off from Amsterdam's Schipol airport for Kuala Lumpur, Malaysia. At 17:20:03, the flight disappeared from the radar.

The investigation has shown that the flight crashed as a result of a missile explosion. All 298 people (283 passengers and 15 crew members) on board died.

Almaz-Antey asserts that the Malaysian Boeing was shot down over Eastern Ukraine by a rocket shot from the direction of Zaproshchensky district under the control of the Ukrainian army. This version has been confirmed by 3 experiments.

The international investigative group does not believe that flight MH17 crashed as a result of a missile launched from Zaproshchensky. According to the international group's theory, the missiles was launched from the countryside in Pervomaysk district.

According to Almaz-Antey's theory, the international group does not have sufficient factual grounds to say that Russia was complicit in the MH17 tragedy. What's more, the international group's modeling of the MH17 crash used the data of an American rocket which is fundamentally different from a Buk. The international investigative group believes that the Buk missile complex that shot down the plane was brought to Ukrainian territory from Russia and returned on the morning of July 18th, 2014.

The Ministry of Defense of the Russian Federation has stated that Russian radio-location systems would have detected the missile that shot down the Boeing over Donbass if it had been launched from the district east of the place of the tragedy. However, technical circumstances do not allow it to be determined whether the missile was launched south or west of the catastrophe's point. Russia has given all of its information to Holland on the situation in the area of the MH17 catastrophe.

Dutch police have stated that Russia's conclusions are wrong. The international investigative group will still study the radio-locative reports to be handed over by Russia.

The international group believes that 100 people were involved in the launch of the rocket, some of whom helped transport the Buk rocket. However, the group has not released the names of those deemed guilty.